JP2004191861A - Binoculars system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To correct an image picked up with an imaging element with tilted transverse direction relative to the horizontal direction due to he rotation of observing optical systems around an axial part, so that the horizontal direction of a display image becomes parallel to the transverse direction of a monitor display screen. <P>SOLUTION: In this binoculars system 1, right and left observing optical systems 3R, 3L are rotatable around an axis 20 parallel to an optical axes XR, X1 of the optical systems 3R, 3L, and the imaging element 14 imaging observing light is provided in at least one optical system 3R. The system is provided with a rotation angle detecting means composed of a conductive pattern 21A and a contact piece 22, for detecting the rotation angle from a reference rotation position of one optical system 3R, having the imaging element 14; and an image correction means 23 for correcting image data of the image picked up by the imaging element 14. Correction of the image data is performed by a segmental processing of the image with a diagonal having an angle of the rotation angle detected by the rotation angle detecting means in relation to the diagonal of the imaging face of the imaging element 14. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a binocular device. More specifically, the present invention relates to a binocular device having a built-in imaging unit for capturing observation light captured by an observation optical system of the binocular device.
[0002]
[Prior art]
When observing an observation target such as a distant scenery or a building with a binocular device, there is a case where it is desired to record the observation target as an image. As a binocular device satisfying such a demand, for example, Patent Document 1 (Japanese Patent Application Laid-Open No. H11-64740) or Patent Document 2 (Japanese Patent Application Laid-Open No. H11-12851) discloses a binocular device having an imaging function. Have been.
[0003]
The binocular device having the imaging function is configured such that observation light at a first imaging plane position of one observation optical system is captured by an imaging element.
[0004]
In addition, the binocular device holds a pair of left and right observation optical systems rotatably around a shaft disposed in the middle of these optical systems. By rotating the observation optical system around the axis, the distance between the left and right observation optical systems can be changed. For this reason, a person (observer) using the binocular device can rotate the observation optical system around the axis to adjust the distance between the left and right observation optical systems to the distance between both eyes.
[0005]
[Patent Document 1]
JP-A-11-64740 (FIG. 1)
[Patent Document 2]
Japanese Patent Laying-Open No. 11-112852 (FIG. 1)
[0006]
[Problems to be solved by the invention]
However, in a binocular device equipped with an image sensor, when the observation optical system is rotated around the axis, the image sensor also rotates around the axis together with the observation optical system, and is moved in the lateral direction of the image sensor (upper side of the image sensor). Direction parallel to the lower side) is inclined with respect to the horizontal plane. Therefore, when the image of the observation object captured by the image sensor is reproduced on the monitor display screen as it is, the horizontal direction of the displayed image is the horizontal direction of the monitor display screen (the direction parallel to the upper side and the lower side of the monitor display screen). This results in an image with a sense of incongruity that is inclined with respect to.
[0007]
In view of this, the present invention provides a liquid crystal display device in which, when the observation optical system is rotated around an axis and an image is captured in a state where the lateral direction of the image sensor is inclined with respect to a horizontal plane, the horizontal direction of an image displayed on a monitor display screen is reduced. It is an object of the present invention to provide a binocular device that corrects image data of an image sensor so that a tilt between a direction and a horizontal direction of a monitor display screen is reduced.
[0008]
[Means for Solving the Problems]
In the binocular device according to the first aspect, the left and right observation optical systems are relatively rotatable about an axis parallel to the optical axis of these observation optical systems, and at least one of the observation optical systems captures observation light. In a binocular device including an image sensor, a rotation angle detecting unit that detects a rotation angle of one observation optical system including the image sensor from a rotation reference position, and an image correcting unit that corrects image data of an image captured by the image sensor And correcting the image data by converting an image based on the corrected image data into an image obtained by rotating the image captured by the image sensor by the rotation angle detected by the rotation angle detecting unit. It is characterized by being. By configuring the binocular device in this way, the angle of inclination of the horizontal direction of the image of the monitor display screen displayed based on the corrected image data with respect to the horizontal plane, the rotation angle from the rotation reference position of the observation optical system It can be made smaller than. That is, even when the observation optical system is rotated around the axis and the image sensor is inclined, the inclination between the horizontal direction of the image displayed on the monitor display screen and the horizontal direction of the monitor display screen is reduced. Can be.
[0009]
3. The binocular device according to claim 2, wherein, in the image correction unit, the image data is corrected such that the diagonal line has an angle of the rotation angle detected by the rotation angle detection unit with respect to a diagonal line of the imaging surface of the imaging element. Is a process of cutting out an image cut out from the imaging surface of the image sensor. By configuring the binoculars in this manner, the angle of inclination of the horizontal direction of the image on the monitor display screen displayed based on the image data of the image that has been cut out from the horizontal plane, from the rotation reference position of the observation optical system Can be made smaller than the rotation angle of. That is, even when the observation optical system is rotated around the axis and the image sensor is inclined, the inclination between the horizontal direction of the image displayed on the monitor display screen and the horizontal direction of the monitor display screen is reduced. Can be.
[0010]
In the binocular device according to the third aspect, for the image correction unit, the correction of the image data is a rotation process of an image that rotates an image captured by the imaging element by an angle of the rotation angle detected by the rotation angle detection unit. It is characterized by the following. By configuring the binocular device in this manner, the angle of inclination of the horizontal direction of the image on the monitor display screen displayed based on the image data of the image subjected to the rotation processing with respect to the horizontal plane, from the rotation reference position of the observation optical system Can be made smaller than the rotation angle of. That is, even when the observation optical system is rotated around the axis and the image sensor is inclined, the inclination between the horizontal direction of the image displayed on the monitor display screen and the horizontal direction of the monitor display screen is reduced. Can be.
[0011]
The binocular device according to a fourth aspect is characterized in that the rotation angle detecting means is an encoder. By configuring the binocular device in this manner, the rotation angle can be detected with a simple configuration.
[0012]
The binocular device according to claim 5, wherein the encoder has a conductive pattern portion provided on the shaft side and a contact that rotates according to the rotation of the observation optical system while being in contact with the conductive pattern portion. And By configuring the binocular device in this way, the encoder can have a simple configuration.
[0013]
According to a sixth aspect of the present invention, there is provided the binocular device, wherein the rotation angle detecting means is rotatably provided around one of the left and right observation optical systems with the optical axis as a rotation axis, and is rotated according to the rotation of the reference body. And an encoder provided on the side of the lens barrel holding the observation optical system provided with the indicator and having a contact for contacting the conductive pattern portion. By configuring the binocular device in this manner, by rotating the indicator, the rotation angle of the observation optical system including the image sensor from the rotation reference position can be detected.
[0014]
In the binocular device according to the seventh aspect, the left and right observation optical systems are relatively rotatable around an axis parallel to the optical axis of these observation optical systems, and at least one of the observation optical systems captures observation light. In a binocular device including an image sensor, when the image sensor rotates with respect to a horizontal plane, a process of receiving a signal that detects the rotation and cutting out an image surrounded by a frame parallel to the horizontal plane from an image captured by the image sensor. And an image correcting means for performing By configuring the binocular device in this way, even if the observation optical system including the imaging element rotates around the axis, the image that has been cut out is such that the horizontal direction in the image is horizontal with respect to the horizontal plane. I have. Therefore, even when this image is displayed on the monitor display device, the horizontal direction of the display image and the horizontal direction of the monitor display screen are parallel.
[0015]
According to a binocular device according to an eighth aspect, in the binocular device according to any one of the first to seventh aspects, the imaging unit includes: a first imaging plane position of one observation optical system; It is characterized by being displaced from the optical path of the optical system to a retracted position retracted. By configuring the binoculars in this manner, the observation optical system can be used for both imaging and observation in which the observer directly observes the observation target.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIGS. 12 and 13 show a second embodiment of the present invention. First, a binocular device according to the first embodiment will be described with reference to FIGS.
[0017]
FIG. 1 shows an appearance of a binocular device 1 according to a first embodiment of the present invention. 2 to 11 show the internal structure of the binocular device 1.
[0018]
In the following description, the observation object side of the binoculars apparatus 1 is referred to as the front, and the observer side is referred to as the rear. Then, the description will be made assuming that the right hand side is the right side and the left hand side is the left side when viewing the front from the rear. That is, in FIGS. 1 to 4, the left direction in the drawing is the front, and the right direction is the rear. 5 to 8, the binocular device 1 is depicted as a view from the rear side.
[0019]
The binocular device 1 has an outer shell formed by a housing 2, and the housing 2 includes a pair of left and right lens barrels 2R and 2L. As shown in FIG. 2, the observation optical system 3R is held in the lens barrel 2R, and the observation optical system 3L is held in the lens barrel 2L.
[0020]
The observation optical system 3R includes an objective optical system 3Ra, an erecting optical system 3Rb, and an eyepiece optical system 3Rc. The other observation optical system 3L also includes an objective optical system 3La, an erecting optical system 3Lb, and an eyepiece optical system 3Lc.
[0021]
Observation light from an observation object existing in front of the binoculars apparatus 1 is incident on the left and right objective optical systems 3Ra and 3La, respectively, passes through the erecting optical systems 3Rb and 3Lb, and is emitted from the eyepiece optical systems 3Rc and 3Lc. When the observer looks into the eyepiece optical systems 3Rc and 3Lc with the left and right pupils, respectively, the observer can perform binocular observation of the observation target.
[0022]
The observation light that has entered the objective optical system 3Ra once forms an image on the first imaging plane position Ma located between the erecting optical system 3Rb and the eyepiece optical system 3Rc, and the observation light that has entered the other objective optical system 3La. Light also forms an image once on the first image plane position Mb located between the erecting optical system 3Lb and the eyepiece optical system 3Lc. The observation light focused on the first imaging plane positions Ma and Mb passes through the eyepiece optical systems 3Rc and 3Lc and exits backward. The focal positions of the eyepiece optical systems 3Rc and 3Lc serving as convex lenses are made to coincide with the first imaging plane positions Ma and Mb, respectively. Therefore, the observer observes the observation light focused on the first image plane positions Ma and Mb by enlarging the observation light with the eyepiece optical systems 3Rc and 3Lc.
[0023]
The erecting optical systems 3Rb and 3Lb serve to form an image that is inverted left and right and up and down by the objective optical systems 3Ra and 3La in an upright state at the first imaging plane positions Ma and Mb. . For example, it is configured by combining a Porro prism that inverts an image upside down and a Porro prism that inverts an image left and right.
[0024]
Here, the optical axis of the observation optical system 3R is XR, the optical axis of the observation optical system 3L is XL, the optical path of the observation optical system 3R is an observation optical path R, and the optical path of the observation optical system 3L is an observation optical path L. Give an explanation.
[0025]
When the adjustment knob 5 of the focus adjustment device 4 is rotated in the left-right direction, that is, in the direction of the arrow shown in FIG. 1, the objective optical systems 3Ra and 3La correspond to the optical axis XR and the optical axis XL, respectively. Displaces back and forth along In other words, by rotating the adjustment knob 5 to displace the objective optical systems 3Ra and 3La back and forth, the observation light from the observation target at an arbitrary distance from the binoculars apparatus 1 is transmitted to the objective optical systems 3Ra and 3La. An image can be formed on the first imaging plane positions Ma and Mb.
[0026]
The focus adjustment device 4 includes the above-described adjustment knob 5, an objective optical system holder 6 that holds the objective optical systems 3Ra and 3La, and a support 2a that supports the adjustment knob 5 on the housing 2. The objective optical system holder 6 has circular objective optical system holding frames 7 and 8 for holding the objective optical systems 3Ra and 3La, respectively, and has a spectacle frame shape when viewed from the front or the rear. . The objective optical system holding frame 7 and the objective optical system holding frame 8 are connected by a connecting portion 9.
[0027]
On the front surface of the adjustment knob 5, a screw shaft 10 having a screw portion formed on the outer periphery is provided integrally with the adjustment knob 5. The adjusting knob 5 is supported by the support 2a so that the screw shaft 10 provided integrally is parallel to the optical axes XR and XL. The screw shaft 10 and the connecting portion 9 are screwed together, and when the adjustment knob 5 is rotated in the direction of the arrow shown in the figure, the objective optical system holder 6 is rotated by the rotation of the adjustment knob 5 while being led by the screw shaft 10. In response to Therefore, as described above, it is possible to displace the objective optical systems 3Ra and 3La by rotating the adjustment knob 5 so that the observation light from the observation target forms an image on the first imaging plane positions Ma and Mb. it can.
[0028]
The right side of the objective optical system holding frame 7 is guided by a guide portion 11 formed in the lens barrel 2R. The left side of the objective optical system holder 8 is guided by a guide portion 12 formed in the lens barrel 2L. That is, the objective optical system holder 6 is guided by the guide portions 11 and 12 so as to be movable only in the front-rear direction. Therefore, since the objective optical system holder 6 is guided by the guides 11 and 12, when the adjustment knob 5 is rotated, it is dragged by the rotation of the screw shaft 10 and rotates around the screw shaft 10. Without displacement, it can be displaced along the optical axes XR and XL.
[0029]
The binoculars apparatus 1 includes an imaging unit 13 that captures observation light that forms an image at a first imaging plane position Ma of the observation optical system 3R. The imaging unit 13 includes a charge-coupled device (hereinafter referred to as a CCD) 14 as imaging means, a printed board 15 on which the CCD 14 is directly mounted, and a CCD support plate 16 to which the printed board 15 is attached. ing.
[0030]
A guide groove 17 extending in a direction perpendicular to the optical axis XR is formed on the upper surface of the lens barrel 2R. A guide projection 16 a that engages with the guide groove 17 is provided on the upper edge of the CCD support plate 16. The upper end of the guide projection 16a penetrates the guide groove 17 and protrudes from the upper surface of the lens barrel 2R, and is formed as an operation portion 16b of the CCD support plate 16. By sliding the operation portion 16b along the guide groove 17, the CCD 14 can be displaced right and left.
[0031]
FIG. 3 shows a state where the CCD 14 is at a position retracted from the observation optical path R so as not to block the observation light. When the imaging unit 13 is in this state, the observation light is guided to the eyepiece optical system 3Rc and enters the observer's eye. That is, when the observer looks into the eyepiece optical system 3Rc, the observer can observe the observation target object via the observation optical system 3R.
[0032]
On the other hand, FIG. 4 shows a state where the CCD 14 is inserted into the observation optical path R and inserted at a position overlapping the first imaging plane position Ma. When the imaging unit 13 is in this state, observation light is formed on the imaging surface of the CCD 14 via the objective optical system 3Ra and the erecting optical system 3Rb.
[0033]
A convex portion 16c (see FIG. 5) is formed at the upper edge of the CCD support plate 16. As shown in FIG. 5, a concave portion 18 and a concave portion 19 that engage with the convex portion 16c are formed on the inner surface of the lens barrel 2R. When the CCD supporting plate 16 is at a position retracted from the observation optical path R as shown in FIGS. 3 and 5, the convex portion 16c engages with the concave portion 18. When the CCD support plate 16 is located at a position overlapping the first imaging plane position Ma as shown in FIGS. 4 and 6, the convex portion 16 c engages with the concave portion 19. The convex portion 16c engages with the concave portion 18 and the concave portion 19 and is positioned and fixed. Therefore, when the CCD support plate 16 is at a position retracted from the observation optical path R shown in FIG. When the binocular device 1 is tilted or vibrated when it is at the position inserted into the imaging plane position Ma (the position overlapping the first imaging plane position Ma), the CCD support plate 16 moves in the left-right direction. Nothing.
[0034]
The engagement between the convex portion 16c and the concave portions 18 and 19 corresponds to a so-called click mechanism.
[0035]
To change the imaging unit 13 from the state shown in FIG. 3 to the state shown in FIG. 4, the operation unit 16b is slid leftward. At this time, the sliding operation of the operation portion 16b is performed against the engaging force between the convex portion 16c and the concave portion 18 of the CCD support plate 16.
[0036]
The lens barrel 2R and the lens barrel 2L are attached to a shaft 20 which is an axis equidistant from and parallel to the optical axis XR and the optical axis XL. The shaft portion 20 is formed on the same shaft as the screw shaft 10, but is a member independent of each other. That is, the screw shaft 10 can be rotated by rotating the adjustment knob 5 independently of the shaft portion 20.
[0037]
The lens barrel 2L is fixedly attached to the shaft section 20. On the other hand, the other lens barrel 2 </ b> R is attached so as to be rotatable around the shaft portion 20. Therefore, as shown by the solid line and the dotted line in FIG. 7, when the lens barrel 2R is rotated around the shaft portion 20, the angle at which the lens barrel 2R and the lens barrel 2L sandwich the shaft portion 20 changes, and the eyepiece optical system 3Rc The distance D between the optical axes of 3Lc can be changed. The observer can adjust the distance D to the distance between the eyes of the observer by rotating the lens barrel 2R around the shaft portion 20.
[0038]
The normal usage is that the binocular device 1 is used substantially horizontally. Therefore, the description of the present embodiment describes a case where the binocular device 1 is in a horizontal state.
[0039]
For example, although the state of the solid line and the dotted line in FIG. 7 described above is depicted in the drawing (apparently), the lens barrel 2R and the lens barrel 2L are rotated by the same angle with respect to the shaft portion 20, respectively. Only the lens barrel 2R rotates with respect to the shaft portion 20. That is, in FIG. 7, while rotating the lens barrel 2R clockwise (rightward as viewed from the rear), the binocular device 1 rotates the lens barrel 2R around the shaft 20 around the shaft 20. It is rotated counterclockwise (leftward when viewed from behind) by half the rotation angle. Therefore, it appears that the lens barrel 2R and the lens barrel 2L rotate by the same angle about the shaft portion 20 in opposite directions around the shaft 20 while the binocular device 1 is kept horizontal.
[0040]
With the binocular device 1 kept horizontal, the lens barrel 2R is fully rotated counterclockwise around the shaft 20, that is, the angle at which the lens barrel 2R and the lens barrel 2L sandwich the shaft 20 is the largest. In this state, the CCD 14 is mounted in the lens barrel 2R such that the lateral direction of the CCD 14 (the direction parallel to the upper and lower sides of the CCD 14) is parallel to the horizontal plane.
[0041]
In the following description, when the binocular device 1 is in a horizontal state, a rotation position about the axis portion 20 of the lens barrel 2R in which the lateral direction of the CCD 14 is parallel to the horizontal plane is referred to as a rotation reference position of the lens barrel 2R.
[0042]
As shown in FIG. 8, a semi-cylindrical conductive pattern attachment 21 is attached to the shaft 20. A conductive pattern 21A having the pattern shown in FIG. 9 is provided on the cylindrical surface of the conductive pattern mounting body 21. The conductive pattern 21 </ b> A shown in FIG. 9 shows a state in which what is provided along the cylindrical surface of the conductive pattern mounting body 21 is developed into a plane.
[0043]
The conductive pattern 21A is provided with a pattern row of four conductive portions. That is, the first conductive part pattern row 21Pa having the longest one conductive part 21a at the uppermost part in FIG. 9, and the second conductive part pattern having one half of the conductive part 21b of approximately half length below the first conductive part pattern row 21Pa. A row 21Pb has a third conductive section pattern row 21Pc having two conductive sections 21c spaced below it, and a fourth conductive section having four conductive contact sections 21d spaced below at the bottom. A pattern row 21Pd is provided.
[0044]
A contact 22 that is in contact with each of the conductive part pattern rows 21Pa, 21Pb, 21Pc, 21Pd of the conductive pattern 21A is attached to the lens barrel 2R. When the lens barrel 2R rotates around the shaft portion 20, the contact 22 also rotates around the shaft portion 20 together with the lens barrel 2R, and slides on the peripheral surface of the conductive pattern mounting body 21 along the circumferential direction. That is, when the lens barrel 2R is rotated around the shaft portion 20, the contact 22 slides on the conductive pattern 21A shown in FIG.
[0045]
The contact 22 has four contacts 22A, 22B, 22C, 22D. The contact 22A corresponds to the first conductive part pattern row 21Pa, the contact 22B corresponds to the second conductive part pattern row 21Pb, the contact 22C corresponds to the third conductive part pattern row 21Pc, and the contact 22D. Corresponds to the fourth conductive part pattern row 21Pd. Therefore, when the contact 22 moves the conductive pattern 21A in the left-right direction, the contact 22A, 22B, 22C, 22D and the conductive part pattern row 21Pa, 21Pb, 21Pc, 21Pd of the conductive pattern 21A are contacted or not. The pattern changes. In the present embodiment, the contact patterns between the conductive part pattern rows 21Pa, 21Pb, 21Pc, 21Pd of the conductive pattern 21A and the contacts 22A, 22B, 22C, 22D are θ0, θ1, θ2, θ3, θ4, θ5, θ6, There are eight contact patterns of θ7.
[0046]
The length of each of the conductive portions 21a, 21b, 21c, 21d is 7: 4: 2: 1. Therefore, the first to fourth conductive part pattern rows 21Pa, 21Pb, 21Pc, 21Pd are considered as four bits, and each conductive part 21a, 21b, 21c, 21d and each contact 22A, 22B, 22C, 22D are formed. When each bit is determined to be “1” when touched, θ0 is “0000”, θ1 is “1111”, θ2 “1110”, θ3 “1101”, θ4 “1100”, θ5 “1011”, θ6. “1010” and θ7 “1001”. That is, in the decimal system, θ0 is = 0, θ1 = 15, θ2 = 14, θ3 = 13, θ4 = 12, θ5 = 11, θ6 = 10, and θ7 = 9.
[0047]
When the lens barrel 2R is rotated around the shaft part 20, the CCD 14 held in the lens barrel 2R also rotates around the shaft part 20. Therefore, when the lens barrel 2R is rotated clockwise around the shaft portion 20 from the rotation reference position while the binocular device 1 is kept horizontal, the right side of the CCD 14 is tilted downward in the lateral direction of the CCD 14. . The rotation angle at which the lens barrel 2R rotates clockwise from the rotation reference position about the shaft 20 as a rotation center is equal to the angle at which the lateral direction of the CCD 14 is inclined with respect to the horizontal plane.
[0048]
As the lens barrel 2R rotates clockwise, the contact 22 slides on the conductive pattern 21A from θ0 to θ7. Then, from the conductive pattern 21A, a signal corresponding to the contact pattern of the contact 22 with the contacts 22A, 22B, 22C, 22D is output to the image operation processing device 23 having the image operation processor 232 as image correction means. The signal output from the conductive pattern 21A is a signal corresponding to the rotation angle at which the lens barrel 2R is rotated clockwise from the rotation reference position around the shaft portion 20 as the center of rotation.
[0049]
In the present embodiment, the lens barrel 2R is rotatable around the shaft 20 by 64 degrees relative to the shaft 20 from the rotation reference position. The correspondence between the rotational position when the lens barrel 2R rotates around the shaft portion 20 and the contact patterns θ0 to θ7 is as follows. When the angle at which the lens barrel 2R is rotated relative to the shaft 20 from the rotation reference position with respect to the shaft 20 is in the range of 0 to 8 degrees, the angle is θ0, and in the range of 8 to 16 degrees, the angle is θ1, 16 In the range of degrees from 24 degrees to θ2, in the range of 24 degrees to 32 degrees is θ3, in the range of 32 degrees to 40 degrees is θ4, in the range of 40 degrees to 48 degrees is θ5, and in the range of 48 degrees to 56 degrees. Corresponds to θ6, and corresponds to θ7 in the range of 56 to 64 degrees.
[0050]
Note that the angle at which the lens barrel 2R can rotate is not limited to 64 degrees, and is appropriately set according to the distance D, the distance between the shaft portion 20, and the optical axis XR and the optical axis XL, and the like. In addition, if the number of contact patterns between the conductive pattern 21A and the contact 22 is increased, highly accurate angle detection can be performed. Further, the range of the angle detected by the contact pattern between the conductive pattern 21A and the contact 22 is uniformly set at every 8 degrees in the above description, but may be non-uniform. In the above example, the position signal is digitally extracted. However, the position may be continuously detected in an analog manner using a volume or the like.
[0051]
When the main switch 24 is turned on to operate the binoculars apparatus 1 and the release button 25 is turned on while the CCD 14 is inserted at the first imaging plane position Ma, image data of an image captured by the CCD 14 is obtained. The image is sent to the image processing unit 23.
[0052]
When the image data of the captured image is reproduced on the monitor display screen as it is when the horizontal direction of the CCD 14 is inclined with respect to the horizontal plane, the horizontal direction (horizontal direction in the image) of the displayed image is changed to the monitor display screen. Is tilted in the horizontal direction (the direction parallel to the upper side and the lower side of the monitor display screen), so that an unnatural image is reproduced. That is, when the lens barrel 2R at the rotation reference position is rotated around the shaft portion 20 to adjust the distance D between the lens barrel 2R and the lens barrel 2L, the lateral direction of the CCD 14 is inclined with respect to the horizontal plane. Then, if the image data from the tilted CCD 14 is reproduced as it is on the monitor display screen, an unnatural image is reproduced as described above.
[0053]
Therefore, the image arithmetic processor 232 performs the correction described with reference to FIG. 10 on the image data of the CCD 14 so that the degree of inclination between the horizontal direction of the image displayed on the monitor display screen and the horizontal direction of the monitor display screen is small. To be. In other words, an image cutting process is performed to cut out a rectangular image 14A indicated by a dotted line having sides parallel to the horizontal plane from the imaging surface of the CCD 14 inclined with respect to the horizontal plane (drawn with solid lines). The image data of the image 14A is corrected image data to be displayed on the monitor display screen.
[0054]
The clipping process of the image 14A is performed as follows.
[0055]
First, a virtual line T connecting the center M of the imaging surface of the CCD 14 (the intersection of the diagonal line of the imaging surface) and the pixel 14B at the upper left corner is drawn at an angle corresponding to the signal output from the conductive pattern 21A (the lens barrel 2R is positioned at the rotation reference position). , The rotation angle rotated about the shaft portion 20 as the center of rotation, that is, half the rotation angle of the lens barrel 2R rotated from the rotation reference position around the shaft portion 20 relative to the shaft portion 20). Rotate counterclockwise around the center M.
[0056]
The pixel A at the position where the virtual line T intersects the left side of the imaging surface of the CCD 14 is defined as the pixel at the upper left corner of the image 14A. The pixel A is set as a coordinate base point (1, 1), the coordinate base point is set as one of the apex angles of the square image 14A, and a square imaging area inscribed in the imaging area of the CCD 14 is cut out as the image 14A.
[0057]
In this embodiment, the rotation of the virtual line T is performed by adopting the following method. That is, when the signal from the conductive pattern 21A is a signal of the contact pattern θ0, that is, when the angle at which the lens barrel 2R rotates relative to the shaft 20 from the rotation reference position around the shaft 20 is 8 If the angle is within degrees, it is considered that the lens barrel 2R has not been rotated from the rotation reference position. That is, the signal of the contact pattern θ0 (“0000” in the 4-bit signal described above) is output as a signal indicating that the lens barrel 2R is not rotated from the rotation reference position. Therefore, the image data captured by the CCD 14 is used as it is as the image data of the monitor display screen without rotating the virtual line T.
[0058]
The signal when the contact pattern is from θ1 to θ7 is output as a signal indicating the rotation angle at which the lens barrel 2R is rotated from the rotation reference position about the shaft 20 as described above. In other words, the signals of the contact patterns θ1 to θ7 are such that the lens barrel 2R is shifted from the rotation reference position by an angle that is half the middle angle of the range of the relative rotation angle with respect to the shaft portion 20 of the lens barrel 2R covered by each contact pattern. It is output as a signal rotated about the shaft 20.
[0059]
Therefore, for example, when the lens barrel 2R is rotated within a range of 8 degrees to 16 degrees relative to the shaft portion 20 from the rotation reference position, the signal of the contact pattern θ1 output from the conductive pattern 21A Is output as a signal in which the lens barrel 2R is rotated about the shaft portion 20 from the rotation reference position by 6 degrees, which is half of 12 degrees between 8 degrees and 16 degrees. That is, when the lens barrel 2R is rotated within a range of 8 degrees and 16 degrees relative to the shaft section 20 from the rotation reference position, it is considered that the lens barrel 2R is rotated in the middle. The signal of the contact pattern θ1 is a signal indicating that the lens barrel 2R has been rotated by 6 degrees, which is a half of 12 degrees, about the shaft section 20 from the rotation reference position. That is, the above-described 4-bit signal “1111” that is the signal of the contact pattern θ1 is output as a signal indicating that the lens barrel 2R has been rotated six degrees around the shaft portion 20 from the rotation reference position. Therefore, when the signal is the contact pattern θ1 from the conductive pattern 21A, it is determined that the lens barrel 2R has been rotated 6 degrees about the shaft 20 from the rotation reference position, and the virtual line T is rotated 6 degrees.
[0060]
When the lens barrel 2R is rotated within a range of 16 degrees to 24 degrees relative to the shaft portion 20 from the rotation reference position, the signal of the contact pattern θ2 output from the conductive pattern 21A is: The lens barrel 2R is output as a signal that is rotated about the shaft 20 from the rotation reference position by 10 degrees, which is half of 20 degrees between 16 degrees and 24 degrees. That is, when the lens barrel 2R is rotated within a range of 16 degrees and 24 degrees relative to the shaft section 20 from the rotation reference position, it is considered that the lens barrel 2R is rotated in the middle. The signal of the contact pattern θ2 is a signal indicating that the lens barrel 2R has been rotated by 10 degrees which is half of 20 degrees from the rotation reference position about the shaft portion 20 as the rotation center. That is, the above-described 4-bit signal “1110”, which is the signal of the contact pattern θ2, is output as a signal indicating that the lens barrel 2R has been rotated by 10 degrees about the shaft 20 from the rotation reference position. Therefore, when the signal is the contact pattern θ2 from the conductive pattern 21A, the virtual line T is rotated by 10 degrees assuming that the lens barrel 2R has been rotated by 10 degrees from the rotation reference position about the shaft portion 20 as the rotation center.
[0061]
Similarly, when the contact pattern is θ3 (when the above-described 4-bit signal is “1101”), the virtual line T is 14 degrees, and when the contact pattern is θ4 (when the above-mentioned 4-bit signal is “1100”). ), The virtual line T is 18 degrees, when the contact pattern is θ5 (when the 4-bit signal is “1011”), the virtual line T is 22 degrees, and when the contact pattern is θ6 (the 4-bit When the signal is “1010”, the virtual line T is rotated by 26 degrees, and when the contact pattern is θ7 (when the 4-bit signal is “1001”), the virtual line T is rotated by 30 degrees.
[0062]
As described above, in the image 14A, the diagonal line is based on the rotation angle from the rotation reference position of the observation optical system 3R that rotates about the shaft portion 20 integrally with the lens barrel 2R with respect to the diagonal line of the imaging surface of the CCD 14. It is a rotated image.
[0063]
The reason why the rotation angle of the imaginary line T is set to half of the angle at which the lens barrel 2R is rotated from the rotation reference position around the shaft portion 20 relative to the shaft portion 20 is as follows.
[0064]
As described above, when the lens barrel 2R is rotated around the shaft portion 20 while the eyeglass device 1 is kept horizontal, the lens barrel 2L fixed to the shaft portion 20 also appears to be Rotate around. Therefore, the angle at which the lateral direction of the CCD 14 is inclined with respect to the horizontal plane is half the rotation angle of the lens barrel 2R rotated around the shaft 20 from the rotation reference position relative to the shaft 20.
[0065]
In the above-described example, the lens barrel 2R is determined to be rotated to an intermediate position in the rotation range detected by the contact pattern, and the rotation angle of the virtual line T is determined. The rotation angle of the imaginary line T may be determined based on the rotation angle assuming that the rotation position is rotated to a rotation position such as the maximum value or the minimum value of each rotation range.
[0066]
In the present embodiment, since the rotation position of the lens barrel 2R is detected in eight stages from the contact patterns θ0 to θ7 of the conductive pattern 21A, the rotation angle of the virtual line T does not match the actual rotation angle of the lens barrel 2R. There are cases.
[0067]
Therefore, when the image 14A is displayed on the monitor display screen, the horizontal direction of the displayed image may not be exactly parallel to the horizontal direction of the monitor display screen. However, as in the present embodiment, the rotation angle from the rotation reference position about the shaft portion 20 of the lens barrel 2R is 0 degree, 6 degrees, 10 degrees, 14 degrees, 18 degrees, 22 degrees, 26 degrees, If detection can be performed with an accuracy of several degrees, such as 30 degrees, there is no great discomfort in viewing the image.
[0068]
That is, the difference from the actual horizontal plane is 2 degrees or 4 degrees, and does not appear as a large difference. That is, when the actual rotation angle from the rotation reference position about the shaft portion 20 of the lens barrel 2R as the rotation center is in the range of 0 to 4 degrees, the rotation angle of the lens barrel 2R from the rotation reference position is set to 0 degrees. , The difference between the rotation angle of the virtual line T and the rotation angle of the lens barrel 2R is 4 degrees at the maximum.
[0069]
When the actual rotation angle from the rotation reference position about the shaft portion 20 of the lens barrel 2R as the rotation center is in the range of 4 to 8 degrees, the rotation angle of the lens barrel 2R from the rotation reference position is 6 degrees. , The difference between the rotation angle of the virtual line T and the rotation angle of the lens barrel 2R is 2 degrees at the maximum.
[0070]
The subsequent rotation range of the lens barrel 2R, that is, the actual rotation angle from the rotation reference position about the shaft portion 20 of the lens barrel 2R as the rotation center is 8 to 12 degrees, 12 to 16 degrees, 16 to 20 degrees, Similarly, in the range from 20 degrees to 24 degrees and from 28 degrees to 32 degrees, the difference between the rotation angle of the virtual line T and the actual rotation angle from the rotation reference position of the lens barrel 2R is 2 degrees at the maximum.
[0071]
The rotation pattern from the rotation reference position of the lens barrel 2R can be detected with high precision or continuously by increasing the contact pattern between the conductive pattern 21A and the contact 22 or using a volume or the like as the rotation angle detection means. Thereby, the angle between the horizontal direction of the image 14A displayed on the monitor display screen and the horizontal direction of the monitor display screen can be made smaller and further equalized. In correcting the image data, an image processing interpolation method such as a simple interpolation method or a bicubic method may be used together.
[0072]
The image data corrected by the image operation processor 232 is recorded in the image memory 26. Then, the stored image data can be displayed on a monitor display screen (not shown) via the external connection terminal 27. When displaying an image on the monitor display screen, the color tone of the image can be corrected and displayed via a computer.
[0073]
The aspect ratio of the image 14A cut out from the CCD 14 (the aspect ratio of the image) does not match the aspect ratio of the imaging surface of the CCD 14. The cut-out image is smaller than the number of pixels of the CCD 14. Therefore, in the image processing unit 23, the expansion ratio for correcting the image data is adjusted so that the aspect ratio and the number of display pixels of the image displayed on the monitor display screen are the same as the aspect ratio and the number of pixels of the image of the CCD 14. After performing the processing, the image is stored in the image memory 26. Of course, the image data may be stored in the image memory 26 without performing the expansion interpolation processing.
[0074]
Next, processing of image data in the image arithmetic processing unit 23 will be described with reference to FIG.
[0075]
The image data output from the CCD 14 is A / D converted in the analog signal processing unit 231 and output to the image processor 232.
[0076]
The image processing processor 232 performs exposure control calculation, white balance processing, gamma processing, and the like on the A / D-converted image data, and outputs the data to the temporary storage memory 233. The temporary storage memory 233 serves to temporarily store image data output from the image processor 232 for processing.
[0077]
Next, the image calculation processor 232 reads out the image data from the temporary storage memory 233, and rotates the image processing apparatus 232 from the conductive pattern 21A to the horizontal horizontal plane of the CCD 14 (rotation about the shaft 20 from the rotation reference position of the lens barrel 2R). The image 14A is cut out based on a signal related to the rotation angle). Image data of the image 14 </ b> A obtained by the clipping process is stored in the image memory 26.
[0078]
In the case of performing the expansion interpolation processing, after the clipping processing is performed, the image data of the image 14A is stored again in the temporary storage memory 233, and the expansion processing is performed by the image arithmetic processor 232, and then stored in the image memory 26. .
[0079]
The timing of image data transfer between the CCD 14 and the analog signal processing unit 231 is measured by a timing generator 234.
[0080]
When the image data is stored in the image memory 26 from the image processor 232, the image data may be compressed and then stored. Further, when a system capable of performing image clipping and decompression interpolation processing in real time is used when performing the clipping processing and decompression interpolation processing of the image 14A, the image can be directly input without using the temporary storage memory 233. It can be stored in the memory 26.
[0081]
On the other hand, when the angle of view clipping process or the expansion interpolation process is performed by the above-described method, if a so-called high-pixel CCD having a large number of pixels is employed, the calculation speed is reduced as the number of pixels increases, and The storage memory 233 requires a large storage capacity. Therefore, means for transferring the image data of the CCD 14 to an external computing means such as a personal computer and performing these processes may be employed. In this case, it is assumed that the external calculation means has an image correction means. The data required by the external arithmetic means for processing includes the number of pixels in the horizontal direction and the number of pixels in the vertical direction of the output of the CCD 14, data on the rotation angle around the shaft portion 20 of the lens barrel 2R, and the like. The external calculation means performs image clipping processing and decompression complement processing based on these data.
[0082]
In the digital camera technology, generally adopted image data formats include, in addition to image data, various files related to images such as shutter speed and aperture data, for example, in a file. There is a mechanism to save the data at the same time.
[0083]
Therefore, similarly to this mechanism, data relating to the rotation angle of the lens barrel 2R from the rotation reference position (the angle at which the lateral direction of the CCD 14 is inclined with respect to the horizontal plane) can be embedded in the file as accompanying information. .
[0084]
As a means for obtaining a rotated image with respect to the image captured by the CCD 14, there is a method of rotating the image captured by the CCD 14, in addition to the above-described method using the clipping process. This rotation processing is performed, for example, as follows. For each pixel of the image captured by the CCD 14, the position of the pixel is set at an angle corresponding to the signal output from the conductive pattern 21A with the center of the imaging surface as the rotation center (the lens barrel 2R moves from the rotation reference position to the shaft portion 20). (The angle rotated about the center). Then, the rotated image data is used as corrected image data to be displayed on the monitor display screen.
[0085]
If the rotated image data is displayed on the monitor display screen as it is, a portion without image data may be formed on the monitor display screen. That is, when the image is rotated, there is a portion where no image data exists between the outer periphery of the imaging area and the outer periphery of the image after the rotation process, and this portion is displayed on the monitor display screen. Become.
[0086]
Therefore, a rectangular image area may be set in the image after the rotation processing, and the image data in this area may be used as corrected image data for displaying on the monitor display screen. The horizontal direction of the rectangular image area is set to have an angle with respect to the horizontal direction of the CCD 14 corresponding to the signal output from the conductive pattern 21A. That is, the image in the rectangular image area is an image obtained by rotating the lens barrel 2R by an angle rotated about the shaft 20 from the rotation reference position with respect to the image captured by the CCD 14.
[0087]
The rotated image data is sent to the monitor display screen as it is, and a square image area having sides parallel to the horizontal direction of the monitor display screen is set on the monitor display screen, and only the image in this image area is displayed on the monitor. You may make it display on a screen.
[0088]
By the way, a space 28 surrounded by the erecting optical system 3Rb and the imaging unit 13 is formed inside the lens barrel 2R in front of the imaging unit 13 at a position retracted outside the observation optical path R. . In this space 28, a battery 29 serving as a power supply of the binocular device 1 is provided.
[0089]
A space 30 is formed inside the lens barrel 2L between the lens barrel 2L and the erecting optical system 3Lb. A printed circuit board 31 on which the image processing unit 23 is mounted, a printed circuit board 32 on which the image memory 26 is mounted, and a control circuit 32 are provided in the space 30. The control circuit 33 controls the operation of the binocular device 1 such as the CCD 14 and the image processing device 23.
[0090]
In addition, as the imaging means, a C-MOS (complementary metal oxide semiconductor) can be used in addition to the CCD 14 described in the present embodiment.
[0091]
Next, a binocular device according to a second embodiment of the present invention will be described with reference to FIGS. Note that the binocular device of the second embodiment is different only in the rotation detecting means, and the other configuration is the same as that of the first embodiment. Therefore, only the configuration of the rotation angle detecting means will be described. Other configurations are omitted or simplified.
[0092]
The rotation angle detecting means includes an index plate 34 having a cross reference line 34A, a conductive pattern 35, and a contact 36. The index plate 34 is held by a rotating barrel 37 supported by the lens barrel 2L. The rotating barrel 37 has the center of the rotating barrel 37 coincident with the optical axis XL, and can be rotated around the optical axis XL with respect to the lens barrel 2L by operating a rotary knob 37A described later. . Further, the conductive pattern 35 is provided on a side surface of the rotating cylinder 37.
[0093]
The contact 36 has one end fixed to the lens barrel 2 </ b> L and the other end slidably in contact with the conductive pattern 35. As can be seen from FIG. 13 in which the rotating cylinder 37 is viewed from above, when the rotating cylinder 37 is rotated, the conductive pattern 35 and the contact 36 move to the rotational position in the same manner as the conductive pattern 21A and the contact 22 described above. The contact pattern is different depending on the contact pattern.
[0094]
When the binocular device 1 is in a horizontal state and the lens barrel 2R is at the rotation reference position, the index plate 34 is in a state in which the rotary cylinder 37 is fully turned clockwise (as viewed from the observer side). Then, at this time, the vertical and horizontal lines of the crosshair that is the reference line 34A are held by the rotating cylinder 37 so as to be parallel to the horizontal plane and the vertical plane, respectively.
[0095]
In order to adjust the distance between the lens barrel 2R and the lens barrel 2L to the distance between both eyes of the observer, while rotating the lens barrel 2R around the shaft 20 while keeping the binocular device 1 horizontal, the index plate 34 rotates apparently around the shaft 20 while maintaining its position. The reference line 34 </ b> A is inclined with respect to the horizontal plane by half the rotation angle of the lens barrel 2 </ b> R around the shaft 20 relative to the shaft 20.
[0096]
The rotary cylinder 37 is rotated so that the reference line 34A inclined with respect to the horizontal plane is parallel to the horizontal plane and the vertical plane. The rotary cylinder 37 is provided with a rotary knob 37A. The rotary knob 37A can be operated from the outside of the lens barrel 2L. By rotating the rotary knob 37A, the rotary barrel 37 can be rotated.
[0097]
When the rotary knob 37A is rotated to rotate the rotary cylinder 37, the contact position between the conductive pattern 35 provided around the rotary cylinder 37 and the contact 36 is displaced. Then, from the conductive pattern 35, a signal corresponding to the angle at which the rotary cylinder 37 is rotated until the reference line 34A inclined with respect to the horizontal plane and the vertical plane is parallel to the horizontal plane and the vertical plane is output.
[0098]
The angle at which the rotating cylinder 37 is rotated is equal to the angle at which the lateral direction of the CCD 14 is inclined with respect to the horizontal plane. The image processing processor 232 performs a clipping process of the image 14A based on this signal. The image data of the image 14A becomes the corrected image data displayed on the monitor display screen. Of course, image rotation processing may be performed based on a signal from the conductive pattern 35, and the image data corrected by this processing may be used as image data for displaying an image on a monitor display screen.
[0099]
Note that the number of captured images is displayed on the liquid crystal display unit 38. The mode button 39 is a button for switching between shooting modes such as indoor shooting and outdoor shooting.
[0100]
In each of the embodiments described above, the contact 22 and the contact 36 are set on the signal input side of the encoder, and the conductive pattern 21A and the conductive pattern 35 are set on the signal output side. However, the conductive pattern 21A and the conductive pattern 35 may be configured as signal input sides, and the contacts 22 and 36 may be configured as signal output sides.
[0101]
Further, the rotation positions of the lens barrel 2R and the lens barrel 2L are configured to be positioned at a specific rotation position by a click mechanism, and the rotation angle from the rotation reference position of the lens barrel 2R and the lens barrel 2L is determined at the determined position. May be detected. By doing so, the detected angle matches the actual rotation angle of the lens barrel 2R and the lens barrel 2L from the rotation reference position. Therefore, it is possible to appreciate an image in which the horizontal direction of the monitor display screen and the horizontal direction of the monitor display screen on which the cut-out image 14A or the rotated image is displayed are always parallel.
[0102]
If the rotation angle detection means is constituted by a volume or the like and the rotation angle of the lens barrel 2R is continuously detected in an analog manner, a monitor on which the cut-out image 14A or the rotated image is displayed. It is possible to appreciate an image in which the horizontal direction of the image on the display screen is always parallel to the horizontal direction of the monitor display screen.
[0103]
The contact 22 is attached to the lens barrel 2R in the first embodiment, but may be attached to the lens barrel 2L. In the above embodiment, the index plate 34, the conductive pattern 35, the contact 36, and the rotary cylinder 37 are also provided on the side of the lens barrel 2L, but may be provided on the side of the lens barrel 2R.
[0104]
【The invention's effect】
As described above, according to the present invention, even when the observation optical system including the imaging element rotates around the axis, the image subjected to the cutout processing is such that the horizontal direction in the image is inclined at an angle with respect to the horizontal plane, The angle can be made smaller than the angle at which the observation optical system is rotated. Therefore, even when this image is displayed on the monitor display device, the inclination between the horizontal direction of the display image and the horizontal direction of the monitor display screen can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram showing an appearance of a binocular device according to a first embodiment of the present invention.
FIG. 2 is a plan view showing an internal structure of the binocular device according to the first embodiment of the present invention.
FIG. 3 is a side view of an internal configuration for explaining an operation of an image pickup unit of the binocular device according to the first embodiment of the present invention, in which an image pickup unit is retracted from an observation optical system R (optical axis XR). FIG.
FIG. 4 is a side view of an internal configuration for explaining an operation of an imaging unit of the binocular device according to the first embodiment of the present invention, in which an imaging unit enters (optical axis XR) from an observation optical system R; FIG. 3 is a diagram showing a state where a CCD is inserted at one image plane position.
FIG. 5 is a view seen from the rear for explaining the operation of the imaging means of the binocular device according to the first embodiment of the present invention, in which the imaging unit has retreated from the observation optical system R (optical axis XR). It is a figure showing a state.
FIG. 6 is a view seen from behind for explaining the operation of the imaging means of the binocular device according to the first embodiment of the present invention, in which the imaging unit enters the optical axis XR from the observation optical system R; FIG. 3 is a diagram showing a state where a CCD is inserted at a first image plane position.
FIG. 7 is a view showing a state in which a lens barrel of the binocular device according to the first embodiment of the present invention is rotated, as viewed from the rear.
FIG. 8 is a diagram showing a rotation angle detecting unit of the binocular device according to the first embodiment of the present invention, as viewed from behind.
FIG. 9 is a diagram showing a conductive pattern portion of the binocular device according to the first embodiment of the present invention.
FIG. 10 is a diagram for explaining a method of correcting image data of the binocular device according to the first embodiment of the present invention.
FIG. 11 is a diagram illustrating a structure of an image processing unit that corrects image data of the binocular device according to the first embodiment of the present invention.
FIG. 12 is a diagram showing a rotation angle detecting unit of the binocular device according to the second embodiment of the present invention, and is a diagram in which a main part is viewed from behind.
FIG. 13 is a plan view of a rotation angle detection unit of a binocular device according to a second embodiment of the present invention as viewed from above.
[Explanation of symbols]
1 Binocular device
R Observation optical path (optical path) of observation optical system 3R
L Observation optical path (optical path) of observation optical system 3L
3R Right observation optical system
3L Observation optical system on the left
14. CCD (image sensor)
20 Shaft (shaft)
21A conductive pattern
22 contacts
232 Image operation processor (image correction means)
34 Indicator body
35 Conductive pattern
36 contacts

Claims (8)

The left and right observation optical systems are relatively rotatable around an axis parallel to the optical axis of these observation optical systems, and in a binocular device including an imaging element that captures observation light in at least one observation optical system,
Rotation angle detection means for detecting a rotation angle from a rotation reference position of the one observation optical system including the imaging element,
Image correction means for correcting the image data of the image captured by the image sensor,
The correction of the image data is a process in which an image based on the corrected image data is an image obtained by rotating the image captured by the image sensor by an angle of the rotation angle detected by the rotation angle detection unit. A binocular device characterized by the following. The image correction unit is configured to correct the image data with respect to a diagonal line of an imaging surface of the imaging device, wherein the diagonal line has an angle of the rotation angle detected by the rotation angle detection unit, the image of the imaging device The binocular device according to claim 1, wherein the binocular device is a process of cutting out an image cut out from an imaging surface. The image correction unit, wherein the correction of the image data is a rotation process of an image that rotates an image captured by the imaging element by an angle of a rotation angle detected by the rotation angle detection unit. Item 2. A binocular device according to item 1. 4. The binocular device according to claim 1, wherein the rotation angle detection unit is an encoder. 5. 5. The encoder according to claim 4, wherein the encoder has a conductive pattern portion provided on the side of the shaft and a contact that rotates according to rotation of the observation optical system while being in contact with the conductive pattern portion. 6. A binocular device according to any of the preceding claims. The rotation angle detection means, an index body rotatably provided with an optical axis as a rotation axis in one of the optical paths of the left and right observation optical system,
It is characterized by comprising a conductive pattern portion that rotates according to the rotation of the indicator, and an encoder that is provided on the side of a lens barrel that holds an observation optical system provided with the indicator and that has a contact that contacts the conductive pattern. The binocular device according to claim 1, wherein The left and right observation optical systems are relatively rotatable around an axis parallel to the optical axis of these observation optical systems, and in a binocular device including an imaging element that captures observation light in at least one observation optical system,
When the image sensor rotates with respect to a horizontal plane, image correction means for receiving a signal that detects the rotation and performing processing of cutting out an image surrounded by a frame parallel to the horizontal plane from an image captured by the image sensor. A binocular device characterized by having. The binocular device according to any one of claims 1 to 7, wherein the imaging element is retracted from a first imaging plane position of the one observation optical system and an optical path of the one observation optical system. Binocular device characterized by being displaced to a retracted position.

Images